Discover the Night

International
Dark Sky Week 2021

Discover the Night
April 5–12

It may seem harmless, but light pollution has far-reaching consequences that are harmful to all living things. Effective outdoor lighting reduces light pollution, leading to a better quality of life for all. The dark sky movement is working to bring better lighting to communities around the world so that all life can thrive.

Join us this International Dark Sky Week to learn more about the movement, and discover the night where you live.

Get Updates

Cityscape to the Milky Way

A lot of the outdoor lighting used at night is inefficient, overly bright, poorly targeted, improperly shielded, and in many cases, completely unnecessary. This light and the electricity used to create it are being wasted because it spills into the sky rather than being focused on the objects and areas that people need illuminated.

Harmful effects on wildlife

Light pollution harms mammals, birds, amphibians, insects, and reptiles. It can decrease reproduction, disrupt migration, increase predation, and more.

Bad, better, best

Use outdoor lighting responsibly by only using it where it’s needed, when it’s needed, in the amount required, and no more. Make sure to use the lowest light level required, limit the amount of shorter wavelength (blue-violet) light, utilize controls (such as timers or motion sensors), and use shielding to target the light, so it does not spill beyond where it is needed.

Effective outdoor lighting

A wide variety of dark-sky-friendly lighting fixtures are vailable from manufacturers.

What is Light Pollution?

Any artificial light that is not needed is a pollutant that has serious and harmful consequences.

Light pollution can:

  • disrupt wildlife
  • impact human health
  • waste money and energy
  • contribute to climate change
  • block our view of the universe

Light pollution is increasing at 2x rate of population growth and 83% of the global population lives under a light-polluted sky.

Places & People

Protecting the night around the world

Explore the map below to learn more about the global dark sky movement. It provides a small snapshot of some of the wonderful International Dark Sky Places and extraordinary IDA Advocates working to protect the night worldwide. 

 
Within |

About Us

IDA protects the night from light pollution

Artificial light at night has revolutionized the way we live and work outdoors, but it has come at a price. When used indiscriminately, outdoor lighting can disrupt wildlife, impact human health, waste money, and energy, contribute to climate change, and block our view of the universe. 

The International Dark-Sky Association promotes win-win solutions that allow people to appreciate dark, star-filled skies while enjoying the benefits of responsible outdoor lighting.

Our Vision

The night sky, filled with stars, is celebrated and protected around the world as a shared heritage benefiting all living things.

Thank you to our brand partners for year-round support

Leading & Guiding partners

Musco Lighting
Grand Canyon National Park Lodges
The Home Depot

Sustaining & Ally partners

The Oasis at Death Valley
Earth Sun Moon
Deneb, The Stories
Selux Corporation

Outreach partners

Grand Canyon National Park Lodges
The Home Depot
IES
Audubon

Events

All around the world

Your Dark Sky Photos

Tag your Instagram posts with either #IDSW2021, #DarkSkyWeek, or #DiscoverTheNight.

"Come with me into the woods. Where spring is advancing, as it does, no matter what, not being singular or particular, but one of the forever gifts, and certainly visible." ~Mary Oliver
*
*
*
Last week, the world celebrated #InternationalDarkSkyWeek and the skies decided it was worth celebrating by lighting up our nights.

For most of the week, the High Peaks slept under the stars — the brisk winds, a reminder that our spring season is still in early bloom.

It’s also the second time our skies danced in the crayola colors of our Aurora Borealis, a treat no matter the season or the week; however, an important reminder that even our night “viewing” skies are precious here.

Did you know that 86% of the WORLD’s population live under polluted skies?  Did you know that you can help protect and preserve these same views for future generations?

Because what would our night be like without crisp stars, brisk breezes, loon tremolos and moose tromping through the trees?

Come visit.  Come stay.  Come watch the stars.  Come preserve the stars.  Come with us into the woods to see the night sky as spring advances.
📸: magicallyflatyeticorn 
*
*
*
Maine Auroras
—————————————————————————————
#maine #mainelife #optoutside #wildmainers #exploremaine #mainehunting #mainenights #nightsky #leavenotrace #bestoftheusa_leavenotrace #maineconservation #maineconservationcorps #conservationorg #tncmaine #newildernesstrust #wildnortheast #neconservation #maineinvitesyou #visitmaine #bestoftheusa_nightscapes #night_captures #rsa_night #night_exposures #raw_nightshots #idsw2021

"Come with me into the woods. Where spring is advancing, as it does, no matter what, not being singular or particular, but one of the forever gifts, and certainly visible." ~Mary Oliver
*
*
*
Last week, the world celebrated #InternationalDarkSkyWeek and the skies decided it was worth celebrating by lighting up our nights.

For most of the week, the High Peaks slept under the stars — the brisk winds, a reminder that our spring season is still in early bloom.

It’s also the second time our skies danced in the crayola colors of our Aurora Borealis, a treat no matter the season or the week; however, an important reminder that even our night “viewing” skies are precious here.

Did you know that 86% of the WORLD’s population live under polluted skies? Did you know that you can help protect and preserve these same views for future generations?

Because what would our night be like without crisp stars, brisk breezes, loon tremolos and moose tromping through the trees?

Come visit. Come stay. Come watch the stars. Come preserve the stars. Come with us into the woods to see the night sky as spring advances.
📸: magicallyflatyeticorn
*
*
*
Maine Auroras
—————————————————————————————
#maine #mainelife #optoutside #wildmainers #exploremaine #mainehunting #mainenights #nightsky #leavenotrace #bestoftheusa_leavenotrace #maineconservation #maineconservationcorps #conservationorg #tncmaine #newildernesstrust #wildnortheast #neconservation #maineinvitesyou #visitmaine #bestoftheusa_nightscapes #night_captures #rsa_night #night_exposures #raw_nightshots #idsw2021
...

7 0
When the stars start to shine...
Zion National Park #utah 
#zionnationalpark #zionnps #visitutah #nationalpark #nationalparks #findyourpark #usinterior #redrocks #nationalparkgeek #longexposure #nationalparkweek

When the stars start to shine...
Zion National Park #utah
#zionnationalpark #zionnps #visitutah #nationalpark #nationalparks #findyourpark #usinterior #redrocks #nationalparkgeek #longexposure #nationalparkweek
...

150 9
Majestic Milky Way over the California coast!
.
.
.
.
#milkyway #milkywayphoto #milkywaygalaxy #astrophotography #chasingthemilkyway #longexposurephotography #seascapes #darkskyplaces #starrysky #darkskies #astrophotography #california #bayarea #nikon #nikond7500 #nikonnofilter #yourshotphotographer #stayandwander #bay_shooters #visitcalifornia #explorecalifornia #milkyway_nightscape_ #idadarksky #DiscovertheNight #IDSW2021 #milkywayshooters #imaginedwithphotopills #milkywaychasers #milkywaycc #night_shooterz bay.shooters visitcalifornia natgeotravel natgeoadventure natgeoyourshot nikonusa photopills idadarksky milkyway.cc milkywaychasers milkywayshooters milkyway_nightscape night_shooterz

Majestic Milky Way over the California coast!
.
.
.
.
#milkyway #milkywayphoto #milkywaygalaxy #astrophotography #chasingthemilkyway #longexposurephotography #seascapes #darkskyplaces #starrysky #darkskies #astrophotography #california #bayarea #nikon #nikond7500 #nikonnofilter #yourshotphotographer #stayandwander #bay_shooters #visitcalifornia #explorecalifornia #milkyway_nightscape_ #idadarksky #DiscovertheNight #IDSW2021 #milkywayshooters #imaginedwithphotopills #milkywaychasers #milkywaycc #night_shooterz bay.shooters visitcalifornia natgeotravel natgeoadventure natgeoyourshot nikonusa photopills idadarksky milkyway.cc milkywaychasers milkywayshooters milkyway_nightscape night_shooterz
...

54 7
| Evening Time Strolls |

There is nothing better for clearing the mind than a beautiful evening time stroll. They allow us time to reset, stretch our legs and fill our lungs with fresh air. Evening time strolls under the nighttime sky can act as a tonic for the stress we encounter in our increasingly digital lives. 

-

While out on our own evening time strolls we take the time to re-discover the beauty of the nighttime sky. We return to the infinite expanse of nature's most nurturing creation: a clear, radiant sky, basking in unfiltered starlight. ✨ We like to pick out the calming colours, sensations and sounds which we remember once we get home, get cosy and unwind...

- 

#eveningtimestroll #nightwalk #nighttimephotography #nighttime #darkness #nightvibes #stargazing #nightsky #DiscovertheNight #Unwind #Sleepy #Relax #TakeYourTime #Reset #Sleep #Sleepy #Evening #EveningTime #TimeToUnwind #UnwindTime #Unwinding #RelaxAndUnwind #Chill #EveningSnack #GoodNightSleep #SleepTight #Irish #IrishMade #BuyIrish #IrishBrand #Healthy

| Evening Time Strolls |

There is nothing better for clearing the mind than a beautiful evening time stroll. They allow us time to reset, stretch our legs and fill our lungs with fresh air. Evening time strolls under the nighttime sky can act as a tonic for the stress we encounter in our increasingly digital lives.

-

While out on our own evening time strolls we take the time to re-discover the beauty of the nighttime sky. We return to the infinite expanse of nature's most nurturing creation: a clear, radiant sky, basking in unfiltered starlight. ✨ We like to pick out the calming colours, sensations and sounds which we remember once we get home, get cosy and unwind...

-

#eveningtimestroll #nightwalk #nighttimephotography #nighttime #darkness #nightvibes #stargazing #nightsky #DiscovertheNight #Unwind #Sleepy #Relax #TakeYourTime #Reset #Sleep #Sleepy #Evening #EveningTime #TimeToUnwind #UnwindTime #Unwinding #RelaxAndUnwind #Chill #EveningSnack #GoodNightSleep #SleepTight #Irish #IrishMade #BuyIrish #IrishBrand #Healthy
...

17 1
There are some places we go to at night that feel like we are on another planet.  As we walk, our lights only light up the landscape right in front of us.  The darkness that exist all around with shadows of unknown and weird formations with the landscape  just feel out of this world.  I image what it would feel like on Mars.  When we turn the lights out and gain our night vision, it only confirms the bizarre and unusual formations around us. 
.
.
.
.
.

.
#milkyway #longexposure #nightsky #nightphotography #nature #space #photography #galaxy #astronomy #landscape #travel #night #landscapephotography #astrophoto #nightscape #milkywaygalaxy #universe #sonyalphafemale #longexposure_shots #starrynight #naturephotography #nightscaper #sky #milkywayphotography #bigbend #darkskypark #darkskyweek #discoverthenight #arizonaskies

.

There are some places we go to at night that feel like we are on another planet. As we walk, our lights only light up the landscape right in front of us. The darkness that exist all around with shadows of unknown and weird formations with the landscape just feel out of this world. I image what it would feel like on Mars. When we turn the lights out and gain our night vision, it only confirms the bizarre and unusual formations around us.
.
.
.
.
.

.
#milkyway #longexposure #nightsky #nightphotography #nature #space #photography #galaxy #astronomy #landscape #travel #night #landscapephotography #astrophoto #nightscape #milkywaygalaxy #universe #sonyalphafemale #longexposure_shots #starrynight #naturephotography #nightscaper #sky #milkywayphotography #bigbend #darkskypark #darkskyweek #discoverthenight #arizonaskies

.
...

55 4
... aber wir sind drauf und dran diesen Teil unserer Identität zu verlieren!

Seit 2012 wächst die Lichtverschmutzung weltweit um 2,2 Prozent pro Jahr. Das ist nur vermeintlich ein geringer Wert, wenn man bedenkt, dass sich die neue Verschmutzung mit der bereits bestehenden kumuliert! 

In Kontinentaleuropa sind 99 Prozent der Menschen einer Form von Lichtverschmutzung ausgesetzt. Der Großteil von uns erlebt schon heute den Nachthimmel nicht mehr so, wie dies Jahrhunderte und Jahrtausende zuvor der Fall war. 

Und in rund zwei Generationen dann, da kennt den Sternenhimmel niemand mehr. Da sind Sternbilder etwas, das für den Menschen nur mehr in Büchern existiert. Da bemüht sich niemand mehr um die dunkle Nacht, weil ihr Wert und ihre Schönheit längst vergessen sind...

Außer wir tun etwas dagegen, heute und überall wo wir sind...

Zitat aus dem Film "Dunkle Seite des Lichts", 2019, BR

#Lightpollution #againstlightpollution #Lichtverschmutzung #gegenlichtverschmutzung #lichtverschmutzungistdoof #gemeinsamfürdieumwelt #patendernacht #darkskies #darkskies4all #underonesky #discoverthenight #protectthenight #lovedarkskies #turnyourlightsoff #rettetdienacht #untereinemhimmel #nachthaltig #mirgehteinlichtaus #austria

... aber wir sind drauf und dran diesen Teil unserer Identität zu verlieren!

Seit 2012 wächst die Lichtverschmutzung weltweit um 2,2 Prozent pro Jahr. Das ist nur vermeintlich ein geringer Wert, wenn man bedenkt, dass sich die neue Verschmutzung mit der bereits bestehenden kumuliert!

In Kontinentaleuropa sind 99 Prozent der Menschen einer Form von Lichtverschmutzung ausgesetzt. Der Großteil von uns erlebt schon heute den Nachthimmel nicht mehr so, wie dies Jahrhunderte und Jahrtausende zuvor der Fall war.

Und in rund zwei Generationen dann, da kennt den Sternenhimmel niemand mehr. Da sind Sternbilder etwas, das für den Menschen nur mehr in Büchern existiert. Da bemüht sich niemand mehr um die dunkle Nacht, weil ihr Wert und ihre Schönheit längst vergessen sind...

Außer wir tun etwas dagegen, heute und überall wo wir sind...

Zitat aus dem Film "Dunkle Seite des Lichts", 2019, BR

#Lightpollution #againstlightpollution #Lichtverschmutzung #gegenlichtverschmutzung #lichtverschmutzungistdoof #gemeinsamfürdieumwelt #patendernacht #darkskies #darkskies4all #underonesky #discoverthenight #protectthenight #lovedarkskies #turnyourlightsoff #rettetdienacht #untereinemhimmel #nachthaltig #mirgehteinlichtaus #austria
...

15 0

Support Dark Skies!

Can you pitch in a few dollars a month to protect the night? Support the International Dark-Sky Association by becoming an IDA monthly member today. When you join our monthly giving club, you will receive a special Nighthawk magnet.

Buy a T-Shirt!

Printed in small batches. Lots of styles and sizes available. Proceeds benefit International Dark-Sky Association.